Deuteronomy 15:1-3

At the end of every seven years you must cancel debts. This is how it is to be done: Every creditor shall cancel any loan they have made to a fellow Israelite. They shall not require payment from anyone among their own people, because the LORD’s time for canceling debts has been proclaimed. You may require payment from a foreigner, but you must cancel any debt your fellow Israelite owes you.